Embedded in the tentacles of hydra are numerous stinging cells called _
Correct answer: B. Nematocysts
- A. Caeca
- B. Nematocysts
- C. Mesentron stomach
- D. None
Explanation
•Branches of the intestine in planaria further give off numerous branches called caeca •In cockroaches, the midgut is a short narrow tube called the mesentron stomach
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The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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